29
aTCA-81514PA
6.6 Power Branches
Power branches within the Shelf originate from the PEM and powers all the blades, the
Shelf Managers and the Fan Trays. The power is divided in four output branches
towards the backplane.
If the joint power capability of all ATCA boards assigned to a branch is
greater than the calculated branch power, the Shelf Manager will not
power
‐
on all boards. (The last plugged
‐
in or the last in the power
‐
up
sequence.)
Figure 15: Power Branches
